package com.servlet.manager;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.dao.impl.ColumnDaoImpl;
import com.dao.impl.UserDaoImpl;
import com.po.Column;
import com.po.User;

public class ManageAddColumnAjaxServlet extends HttpServlet {

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doPost(request, response);
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		request.setCharacterEncoding("UTF-8"); 
		  response.setCharacterEncoding("UTF-8");
	      response.setContentType("text/html;charset=UTF-8"); 
	      String type = request.getParameter("ctype"); 
	      PrintWriter out = response.getWriter();
	     // String jsonStr = "{\"valid\":\"false\",\"type\":\"虫子\"}";
	      //String jsonStr = "{\"name\":\"fly\",\"type\":\"虫子\"}";
	        //String jsonFalseString="{\"valid\":false}";
	      String jsonFalseString="{\"valid\":false}";
	      String jsonTrueString="{\"valid\":true}";
	      if(type!=null){
		      try {
		    	  List<Column> lc = new ColumnDaoImpl().findListByType(type);
					if(lc.size()>0){ 
					      out.println(jsonFalseString); 
					      System.out.println(jsonFalseString);
					  }
					else{ 
					      out.println(jsonTrueString); 
					      System.out.println(jsonTrueString);
					}
		      } catch (SQLException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
		  }
	      System.out.println(type);
	      }
	}

}
